Dust-recovering



et A. mEsELER. DUST RECOVEFHNG.`

APPUCATION FILED JULY 5,1929.

Patented Nov. 8, 1921..

. I l l 3 SHEEV- MEET TG. A. GiEsELER. ADus RECOVKERING. APPLICATKO'N FILED IULY 5, 19191 1,396,188. www@ 8,1921. y 4 v s suns-SHEET s.

? 7 INVENTQR Zvw as ortica..

19396,]l886 ,Specification of Letters Patent.

To all wtomztma.yconcern; A through the center of a shaking cylinder e it known that l, Gnoiicii A. Ginestra, a for the filter; Fie'. is a horizontal see-tion citizen of Germany, residing'at Cleveland, in through the exhtiiust nox-t of tliemshalin the State of Ohio7 have invented certain new cylinder; Fig; 5 is a lone-itudinal veriiicil; and useful Improvements in Dust-liecoven section through the tiinei2 or distrihuutiricr 60 infr,of which the followingis a specification. valve and pdrtions of the mechanism as? 2lVIy invention relates particularly to that sociated therewith; F ie 6 is a perspective type of apparatus which is used in industrial of the timer valve renijoved from its seat'l and other plants to receive dust laden air Figs. 7 and 8 aretransverse vertical secz and extract the dust therefrom. Sometimes tions through the timer valv suclrdevices are used where the thing of in tivo different positions Fig. economic 'importance is the recovery for use tudi'nal vertical section throne` of the material carried as a dust by the air. .mechanism and Fig. 10 is a tra, Sometimes the thing of importance is to cal section through the saine.v purify the air so that when it is released into l1 and 2 are filter units of the usual bao 70 the atmosphere it will not carry with it typeboth/'of which are connected with th? injurious or harmful material in the form of air outlet manifold 3. Theirconnecton with dust. My invention is equally adapted for/the manifold 3 is regulated by means of the either type of apparatus. usual valve inthe housing Aoperated by the One embodiment of my invention includes usual air cylinders 19, 22 and 29. The usual 75 the so called bag filters of the ordinary type. suction devices may be employed te null the hese ,aregenerally employed in groups 0il air through the filters and out through the units so arranged that one group may be put -manifold 3. outv of operation and cleaned while so inac- A pipe 5 carrying compressed air enters tive. One method of cleaning is to'shake the an oil irnector 6 provided with a threaded 80 bags of the units so as to detach the colopening 7 to receive any well known type of lected dust. My invention includes an imoil cup 8 which supplies oil to be drawn into proved shaking cylinder for this purpose. the compressed air as it passesthrough the These devices may he operated ,by comnozzle 9 which may be removedor adjusted pressed air andthe presnt invention includes through its screw-threaded connection with 85 a new and improved form ot'` distributingI the distributing body 10. @il laden air valve or timer by which the compressed air passes from the oil injector 6 through the ,is directed at the proper time to the proper pipe y11 to the distributei 12. mechanism. As an incident ofthis operation The distributer 12 consists of a hollow I provide means for feeding oil to the coinvalve 13 iestin f in the valve seat'l/S. The 90 pressed air with which it is mixed before valve 13 and its seatare tapered orinclined being distributed to the various parts of the so as to it snugly but not too tightiy to roapparatus so that the various parts are lutate. kFor purposes of illustration this taper bricated as they are actuated'. To avoid is`shown inthe drawing somewhat exaggerfoulingthe atmosphere and the other maated. The valve seat 14 may be provided 95 chines or structures which may be associated with any suitable number of outlet ports, with the filters proper or located near them yone generally being provided for each unit I provide in the exhaust line for the comof filter employed. .In the present instance pressed air a deviceor removing the oil cartwo outlet ports 15 and 16 are shown. The

ried by the air. This is especially advanoutlet port 15 is connected by means of the 100 tageous as it prevents the oil laden exhaust pipe 17 to the shaking cylinder 18 and the air being inhaled by the workmen employed kvalve cylinder 19 associated with the filter about the plant.l unit 1. The outlet 16 is connected by means Without intending to limit my invention of the pipe 20 to the shaking cylinder 21 and to the specific details shown I, have illusthe valve cylinder 22 associated with the il- 105 trated one form of apparatus embodying my ter unit 2. The valve seat 14 is also provided invention in the accompanying drawings in with exhaust ports 23 and 24 which are open which Figure 1 is a plan view of the top of to the air. The valve 13 is provided with an twosections ota filter; Fig. 2 is a side elevaair port 25 and withan exhaust groove 26 55. tion ofthe saine; Fig. -3 is a vertical section situated near it and in position to register 110 with the ports and 16 aftertheport 25 has passed from them. Another groove 26 might be similarly situated on the other side ofthe port so that the grooves would function properly iii whichever direction the valve is rotated.y Two grooves are shown in Fig. 6 but onlyone is shown in Figs. 7 and 8. The 'air port 25 runs entirely through the shell of thevvalve 13 so'as to connect its hollow center with its surface but the groove 26' is merely an indentation in the surface, of

i the valve and does not connect with itsrliollow interior. The valve 13 is mounted on the shaft 27 which may be rotated byfany suitable mechanism 28. As the shaft is rotated the port 25 in the valve 13 comes opposite the outlets 15 and 16 and registers with them in succession.

' When the port 25 registers with the outlet port 15`as shown in Fi 8 the oil laden com.

pressed air introduced through the pipe 11 asses through the pipe 17 and into the 'cyl- 'lnder 19 which causes the valve in the hous- .ing 4 to close the connection between the manifold 3 andthe unit 1. This interrupts the flow of dust: laden air through the unit 1 of the filtert At the same time the Aoil laden compressed air isadmitted from'the vpipe 17 into the shaking cylinder 18 therehake the bags in the unit'Y by causing it to s 1 and free them of the embed( ed dust as hereinafter explained. As the va ve 13 continues to rotate the grove 26 will connect the port 15 with the exhaust port 23' as shovvl'i in Fig. 7. This will immediately relieve the pressure in the pipe 17 and thus discontinue the shaking operation of the cylinder.. 18

and allow the cylinder 19 to let the valve into register with the port 16 thereby admitc in the housing 4 move so as to again connect the unit 1 with the manifold 3. valve 13 further revolves the port 25 comes ting the oil laden 'ai-r to the shaking cylinder 21 and the valve cylinder 22 of the unit 2 so that that unit is disconnected from the manifold `and its bags cleaned and then the groove 26 connects the port 16 with the outlet 24 to relieve the pressure and restablish the working condition of the unit 2.

The. shaking cylinders 13 and 21 each have a single exhaust port which is connected to apipe 31 which leads to an oil separator 32. In the present instance I have -shown the oilseparator 32 of the cyclone for the next flow of oil laden air. It is thus As the P possible because of the intermittent flow to obtain at the outlet by the use of a simple separator air substantially free from oil.

The valves in the housing 4 are normally held in position to connect the units to the manifold 3 by means of c linders '29 which `are connected by means of the pipe to the source of oil laden compressed air without \passing through the timer 12. These operating cylinders 29 .ares considerably smaller thanthe opposing cylinders 19 and 22 so thatthey may be overcome by the larger cylinders "when compressed air is admitted to them. The cylinders 29 preponderat'e, however, when the supply of compressed air-is cut olf from the cylinders 19 and 22.,`

In Figs. 3 and 1% I haveshown the type of4 shaking cylinder which I prefer to use. The compressed air. enters from the pipe 17 and exhausts from the single exhaust-port 33 to which is connected the pipe 31. The usual disk for supporting the filter bags may be attached in any well known way to the shaft 34 which carries the piston 35 moving in the cylinder 36. .The shaft 34 is surrounded by a coil spring 37 which tends to keep the piston in a raised position. Surrounding the stem 34 and having a longitudinal lostmotion thereon is a valve 38 which is depressed when the compressed 4air enters the/pipe 17 overcoming the inertia of the Spring 37. As th` piston 35 travels downward it carries with `it the valve 38 which opens the single exhaust port 33 allowing a sudden and immediate release of the alr pressure in the cylinder 36 so that the spring 37 may force the piston 35 upward. This moves the -valve 38 closing the valve ort 33 to allow the accumulation of pressure from the compressed air from the pipe 17 to again force downward the piston 35 thus causing a rapid reciprocation'of the shaft 34 andavigorous shaking of the filter bags connected therewith so long as theport 25 of the valve engages the corresponding outlet port in they casing.

I claim as my invention 1. In dust recovering apparatus, a plurality of filter units, operating cylinders for each unit,v means for mixing oil and compressed air: a hollow tapered valve` means for supplying oil laden compressed air to the hollow of the'valve, a port extending through the valve from the hollow to its surface, a casing having a tapered seat for the valve, ports in the casing eac-h connecting with the cyllnders of one unit, means for rotating the valve for causing the port in it to vregister with the ports in the casing'y in succession, and means for recovering oil from the exhaust air from thecylinders so extending through Ato register with the ports rality of filter units, a valve operating cylinder and a .shalring'cylinder for each unit, a single exhaust port for each shaking cyl1nder, a pipe connecting all the single exhaust ports, an oil separator on the pipe so that the air entering the filters during cleaning may he substantially free from oil, a hollow tapered valve, ineans'for supplying compressed air to the hollow of the valve, a port the valve from the hollow to its surface, a casing having a tapered seat for the valve, ports in the casing each connecting with the cylinders of one unit, and means for rotating the valve for causing vthe port in it to register with the ports in the casing in succession.

3. In dust recovering apparatus, a plurality of lilter units, a valve operatin cylinder and a shaking cylinder for eac unit, a single exhaust port for each shaking cylinder, a device for distributing compressed air to the cylinders appurtenant each unit in succession, a hollow valve in the deyice,

means for supplying oil laden compressed d air to the hollow of the valve, a port extendv ing through the valve from the hollow to its surface, a casing having a tapered seat for the valve, ports in the casing each connecting with the cylinders of one unit, means for rorating the valve for causing the port in it in the casing in succession, and means for recovering oil from the exhaust air from the cylinders so that the air entering the filters during cleaning may he substantially freeifrom oil.

ln dus recovering apparatus, a vfilter unit, operating cylinders vice for' distributing oil laden compressed air to the cylinders a single exhaust port for each cylinder, and an oil separator on the eX- haust so 'that the air entering the filters during cleaning he substantially1 free from oil.

5. :in dust recovering apparatus, a plurality ci units, each having an air outlet valve., a valve operating lcylinder and a shaking cylinder for each unit, a single exhaust port for each shaking cylinder to increase the nach pressure, and a device for distributing compressed air to the cylinders appurtenant each unit in succession.

6. ln dust recovering apparatus, a plu- .vlce for 'admitting oil for the unit, Va deln dust recovering apparatus, a filterl unit, operating cylinders for the unit, a deladen compressed air to the cylinders, means for subsequently relieving the pressure in the cylinders, a single exhaust port for each cylinder, and an oil separator on the exhaust so that the air entering thc filters during cleaning may be substantially free from oil.

8.1111 dust recovering apparatus, a plurality of filter units, a valve operating cylinder and a shaking cylinder for each unit, a single exhaust port for each shaking cylinder, a device for distributing compressed air to the cylinders appurtcnant each unit in succession, means for inixing .oil and compressed air, a hollow tapered valve in the evice, means for supplying o il laden compressed air to the hollow of the valve, a port extending through the'valve from .the hollow to its surface, a casing having a tapered seat for the valve, ports in th'e casing each connecting with the cylinders Vof one unit, means for rotating the valve for causing the port" in it to register with the ports in the casing in succession, and'means for recovering oil from the exhaust air from the cylinders so that the air entering the filters during cleaning may free from oil.

9. In dust recovering apparatus, a filter unit, operating means for the unit, means or feeding oil laden air to the operating means, and means for removing oil from the air leavingthe operating means so-that air entering the filter during cleaning may be substantially free from oil.

10. ln dust recovering apparatus, a plurality of lter units, each having an air l outlet valve, a valve operating cylinder and a shaking' cylinder for each unit, a single eah'austpcrt for each shaking cylinder and a device lfor distributing compressed air to the cylinders appartenant each unit in succession.

A.. G-EESELER.

be substantially 

